15950000

素因数分解:

$2^4\times 5^5\times {\mathrm{11}}^1\times {\mathrm{29}}^1$

素因数の和:73

約数の個数: 120

約数和(自身を含む): 43590960

約数和(自身を除く): 27640960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 29, 40, 44, 50, 55, 58, 80, 88, 100, 110, 116, 125, 145, 176, 200, 220, 232, 250, 275, 290, 319, 400, 440, 464, 500, 550, 580, 625, 638, 725, 880, 1000, 1100, 1160, 1250, 1276, 1375, 1450, 1595, 2000, 2200, 2320, 2500, 2552, 2750, 2900, 3125, 3190, 3625, 4400, 5000, 5104, 5500, 5800, 6250, 6380, 6875, 7250, 7975, 10000, 11000, 11600, 12500, 12760, 13750, 14500, 15950, 18125, 22000, 25000, 25520, 27500, 29000, 31900, 34375, 36250, 39875, 50000, 55000, 58000, 63800, 68750, 72500, 79750, 90625, 110000, 127600, 137500, 145000, 159500, 181250, 199375, 275000, 290000, 319000, 362500, 398750, 550000, 638000, 725000, 797500, 996875, 1450000, 1595000, 1993750, 3190000, 3987500, 7975000, 15950000]

約数ペア:

[(1, 15950000), (2, 7975000), (4, 3987500), (5, 3190000), (8, 1993750), (10, 1595000), (11, 1450000), (16, 996875), (20, 797500), (22, 725000), (25, 638000), (29, 550000), (40, 398750), (44, 362500), (50, 319000), (55, 290000), (58, 275000), (80, 199375), (88, 181250), (100, 159500), (110, 145000), (116, 137500), (125, 127600), (145, 110000), (176, 90625), (200, 79750), (220, 72500), (232, 68750), (250, 63800), (275, 58000), (290, 55000), (319, 50000), (400, 39875), (440, 36250), (464, 34375), (500, 31900), (550, 29000), (580, 27500), (625, 25520), (638, 25000), (725, 22000), (880, 18125), (1000, 15950), (1100, 14500), (1160, 13750), (1250, 12760), (1276, 12500), (1375, 11600), (1450, 11000), (1595, 10000), (2000, 7975), (2200, 7250), (2320, 6875), (2500, 6380), (2552, 6250), (2750, 5800), (2900, 5500), (3125, 5104), (3190, 5000), (3625, 4400)]